I was told that when you set the timing on a 1990 chevy 350 w/ EFI you need to disconnect something under the dash, does anyone know anything about this?
Timing on 1990 350
Aug 07, 2008
1 Replies
on my 1992 there is brown wire on the passenger side of the firewall that has a connector that you disconnect to set the base timing to zero degrees.
----------- Elbert snipped-for-privacy@me.com
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